[zk-keygen] create cli utility and add new command

Cargo.toml

@@ -103,6 +103,7 @@ members = [
     "validator",
     "version",
     "watchtower",
+    "zk-keygen",
     "zk-token-sdk",
 ]
 
@@ -358,6 +359,7 @@ solana-transaction-status = { path = "transaction-status", version = "=1.16.0" }
 solana-udp-client = { path = "udp-client", version = "=1.16.0" }
 solana-version = { path = "version", version = "=1.16.0" }
 solana-vote-program = { path = "programs/vote", version = "=1.16.0" }
+solana-zk-keygen = { path = "zk-keygen", version = "=1.16.0" }
 solana-zk-token-proof-program = { path = "programs/zk-token-proof", version = "=1.16.0" }
 solana-zk-token-sdk = { path = "zk-token-sdk", version = "=1.16.0" }
 spl-associated-token-account = "=1.1.3"

zk-keygen/Cargo.toml

@@ -0,0 +1,33 @@
+[package]
+name = "solana-zk-keygen"
+description = "Solana privacy-related key generation utility"
+publish = false
+version = { workspace = true }
+authors = { workspace = true }
+repository = { workspace = true }
+homepage = { workspace = true }
+license = { workspace = true }
+edition = { workspace = true }
+
+[dependencies]
+bs58 = { workspace = true }
+clap = { version = "3.1.5", features = ["cargo", "derive"] }
+dirs-next = { workspace = true }
+num_cpus = { workspace = true }
+solana-clap-v3-utils = { workspace = true }
+solana-cli-config = { workspace = true }
+solana-remote-wallet = { workspace = true, features = ["default"] }
+solana-sdk = { workspace = true }
+solana-version = { workspace = true }
+solana-zk-token-sdk = { workspace = true }
+tiny-bip39 = { workspace = true }
+
+[dev-dependencies]
+tempfile = "3.5.0"
+
+[[bin]]
+name = "solana-zk-keygen"
+path = "src/main.rs"
+
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]